Adding support for AppRTC closure compiling.

download_golang.py

Index: download_golang.py
===================================================================
--- download_golang.py	(revision 293799)
+++ download_golang.py	(working copy)
@@ -19,18 +19,6 @@
 import utils
 
 
-def _DownloadFilesFromGoogleStorage(webrtc_deps_path):
-  print 'Downloading files in %s...' % webrtc_deps_path
-
-  extension = 'bat' if 'win32' in sys.platform else 'py'
-  cmd = ['download_from_google_storage.%s' % extension,
-         '--bucket=chromium-webrtc-resources',
-         '--auto_platform',
-         '--recursive',
-         '--directory', webrtc_deps_path]
-  subprocess.check_call(cmd)
-
-
 def _GetGoArchivePathForPlatform():
   archive_extension = 'zip' if utils.GetPlatform() == 'win' else 'tar.gz'
   return os.path.join(utils.GetPlatform(), 'go.%s' % archive_extension)
@@ -47,9 +35,10 @@
   archive_path = os.path.join(golang_path, _GetGoArchivePathForPlatform())
   old_archive_sha1 = utils.ComputeSHA1(archive_path)
 
-  _DownloadFilesFromGoogleStorage(golang_path)
+  utils.DownloadFilesFromGoogleStorage(golang_path)
 
-  if old_archive_sha1 != utils.ComputeSHA1(archive_path):
+  if (old_archive_sha1 != utils.ComputeSHA1(archive_path)
+      or not os.path.exists('go')):
     utils.DeleteDirNextToGclient('go')
     utils.UnpackToWorkingDir(archive_path)